Please 11:30 tak answer bta do please my exam is going on please
a and b both answer please
and thanks RANDOM for helping me a lot
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1.V=√2hg
Distance/time=√2gh
19. 6/t=√2×9. 8×19. 6
19. 6/t=19. 6
t=1sec
2.Buoyancy is the upward force exerted by fluids over the surface are of contact of an object which is immersed in fluids. Buoyancy is also known as upward thrust. Why does an object sink or float over water. When an object is immersed in water, it exerts pressure over water due to its weight.
Use this formula
Weight of the water displaced= weight of body + additional mass
ρw Vg=Mg (M is the total mass)
ρ w V=M=(100+m)
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